A Monaural Cue Sound Localizer

Authors:
John G. Harris;Chiang-Jung Pu;Jose C. Principe
Affiliations:
Computational Neuro-Engineering Laboratory, Department of Computer and Electrical Engineering, University of Florida, Gainesville, FL 32611;Computational Neuro-Engineering Laboratory, Department of Computer and Electrical Engineering, University of Florida, Gainesville, FL 32611;Computational Neuro-Engineering Laboratory, Department of Computer and Electrical Engineering, University of Florida, Gainesville, FL 32611
Venue:
Analog Integrated Circuits and Signal Processing
Year:
2000

Citing 2
Cited 2

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Analog Integrated Circuits and Signal Processing
Learning sound location from a single microphone

ICRA'09 Proceedings of the 2009 IEEE international conference on Robotics and Automation

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Abstract

We describe the first single microphone sound localization system and its inspiration from theories of human monaural sound localization. Reflections and diffractions caused by the external ear (pinna) allow humans to estimate sound source elevations using only one ear. Our single microphone localization model relies on a specially shaped reflecting structure that serves the role of the pinna. Specially designed analog VLSI circuitry uses echo-time processing to localize the sound. A CMOS integrated circuit has been designed, fabricated, and successfully demonstrated on actual sounds.